Recent Advances in the Mitigation of the Catalyst Deactivation of CO2 Hydrogenation to Light Olefins

Autor:	Cheng Zhang, Daniel Weber, Nicholas J. Ramer, Christian Moon, Nicole Foley, Tina He, Matthew Wong, Axel Zhang
Rok vydání:	2021
Předmět:	chemistry.chemical_classification Olefin fiber Ethylene Hydrogen catalyst deactivation Chemical technology chemistry.chemical_element Sintering TP1-1185 Polymer Catalysis CO2-Fischer-Tropsch (CO2-FT) Chemistry chemistry.chemical_compound chemistry Chemical engineering iron-based catalysts Physical and Theoretical Chemistry Bifunctional Selectivity QD1-999 CO2 hydrogenation light olefins methanol to olefins
Zdroj:	Catalysts, Vol 11, Iss 1447, p 1447 (2021)
ISSN:	2073-4344
DOI:	10.3390/catal11121447
Popis:	The catalytic conversion of CO2 to value-added chemicals and fuels has been long regarded as a promising approach to the mitigation of CO2 emissions if green hydrogen is used. Light olefins, particularly ethylene and propylene, as building blocks for polymers and plastics, are currently produced primarily from CO2-generating fossil resources. The identification of highly efficient catalysts with selective pathways for light olefin production from CO2 is a high-reward goal, but it has serious technical challenges, such as low selectivity and catalyst deactivation. In this review, we first provide a brief summary of the two dominant reaction pathways (CO2-Fischer-Tropsch and MeOH-mediated pathways), mechanistic insights, and catalytic materials for CO2 hydrogenation to light olefins. Then, we list the main deactivation mechanisms caused by carbon deposition, water formation, phase transformation and metal sintering/agglomeration. Finally, we detail the recent progress on catalyst development for enhanced olefin yields and catalyst stability by the following catalyst functionalities: (1) the promoter effect, (2) the support effect, (3) the bifunctional composite catalyst effect, and (4) the structure effect. The main focus of this review is to provide a useful resource for researchers to correlate catalyst deactivation and the recent research effort on catalyst development for enhanced olefin yields and catalyst stability.
Databáze:	OpenAIRE
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